LF Rod Seals 1 Archives

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Low-friction Bi-Directional Hydraulic Rod Seal

Providing low friction and long life over a wide range of light- to medium-duty service applications where higher pressure spikes can occur. The contoured PTFE cap is designed to resist extrusion and twisting of the O-ring under higher pressure. The S68A can be provided to retrofit into standard or modified O-ring grooves designed for no back-up, single or two back-up rings.

Operating Range

Material	Operating Pressure up to	Maximum Pressure up to	Temperature	Surface Speed up to	Fluid, Media Compatability
Permachem 6643	3,800psi (260bar)	5,000psi (350bar)	-40°F to 400°F (-40°C to 210°C)	13ft/s (4m/s)	mineral oil-based fluids, fire-resistant water-based hydraulic fluids including HFA and HFB, biodegradable fluids, vegetable oils, bio-diesels, and most modern hydraulic fluids
Permachem 6150	5,000psi (350bar)	6,000psi (420bar)	-40°F to 400°F (-40°C to 210°C)	13ft/s (4m/s)	same as Permachem 6643
Additional standard materials available: PTFE, filled PTFE®, engineered thermoplastics, high-performance polyurethanes, NBR (Nitrile), FKM, Viton®, HNBR, EPDM, Aflas®, Hytrel®, Silicone, low- and high-temperature, FDA-compliant seal material grades and proprietary specialized Duralast™, Duraloy™, and Permachem™ materials.
Important Note: Maximum values above depend on extrusion gap, clearances, seal material, media, temperatures, pressures, surface speed, dynamic running surface finish and working environment. Seals cannot be operated at their upper ratings at the same time. Pressure ratings can be increased by reducing clearances. For pressure above specified operating pressure, surface speed above 5ft/s (1.3m/s), or for any advice, please contact engineering@ahpseals.com

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S93

Bi-Directional Low-Friction Hydraulic Rod Seal

O-ring-energized seal providing smooth movement, low friction and long service life over a wide range of light- to medium-duty applications. The small axial seal height reduces gland height, weight and cost. Commonly used in hydraulic presses, machine tools, injection molding machines and mobile hydraulics.

Operating Range

Material	Operating Pressure up to	Maximum Pressure up to	Temperature	Surface Speed up to	Fluid, Media Compatability
Permachem 6643	3,800psi (260bar)	5,000psi (350bar)	-40°F to 400°F (-40°C to 210°C)	13ft/s (4m/s)	mineral oil-based fluids, fire-resistant water-based hydraulic fluids including HFA and HFB, biodegradable fluids, vegetable oils, bio-diesels, and most modern hydraulic fluids
Permachem 6150	5,000psi (350bar)	6,000psi (420bar)	-40°F to 400°F (-40°C to 210°C)	13ft/s (4m/s)	same as Permachem 6643
Additional standard materials available: PTFE, filled PTFE®, engineered thermoplastics, high-performance polyurethanes, NBR (Nitrile), FKM, Viton®, HNBR, EPDM, Aflas®, Hytrel®, Silicone, low- and high-temperature, FDA-compliant seal material grades and proprietary specialized Duralast™, Duraloy™, and Permachem™ materials.
Important Note: Maximum values above depend on extrusion gap, clearances, seal material, media, temperatures, pressures, surface speed, dynamic running surface finish and working environment. Seals cannot be operated at their upper ratings at the same time. Pressure ratings can be increased by reducing clearances. For pressure above specified operating pressure, surface speed above 5ft/s (1.3m/s), or for any advice, please contact engineering@ahpseals.com

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S93P

Low-friction Hydraulic and Pneumatic Rod Seal

O-ring-energized economical bi-directional light- to medium-duty hydraulic or pneumatic seal. The thinner PTFE cap is designed to better respond to low-pressure sealing.

Operating Range

Material	Operating Pressure up to	Maximum Pressure up to	Temperature	Surface Speed up to	Fluid, Media Compatability
Permachem 6643	3,800psi (260bar)	5,000psi (350bar)	-40°F to 400°F (-40°C to 210°C)	13ft/s (4m/s)	mineral oil-based fluids, fire-resistant water-based hydraulic fluids including HFA and HFB, biodegradable fluids, vegetable oils, bio-diesels, and most modern hydraulic fluids
Permachem 6150	5,000psi (350bar)	6,000psi (420bar)	-40°F to 400°F (-40°C to 210°C)	13ft/s (4m/s)	same as Permachem 6643
Additional standard materials available: PTFE, filled PTFE®, engineered thermoplastics, high-performance polyurethanes, NBR (Nitrile), FKM, Viton®, HNBR, EPDM, Aflas®, Hytrel®, Silicone, low- and high-temperature, FDA-compliant seal material grades and proprietary specialized Duralast™, Duraloy™, and Permachem™ materials.
Important Note: Maximum values above depend on extrusion gap, clearances, seal material, media, temperatures, pressures, surface speed, dynamic running surface finish and working environment. Seals cannot be operated at their upper ratings at the same time. Pressure ratings can be increased by reducing clearances. For pressure above specified operating pressure, surface speed above 5ft/s (1.3m/s), or for any advice, please contact engineering@ahpseals.com

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S98

Bi-Directional Low-Friction Heavy-Duty Hydraulic Rod Seal

Square energizer ensures continuous contact along the sealing surface for low friction and improved low-pressure sealing in both directions over a wide range of service applications. The small axial seal height reduces gland height, weight and cost.

Operating Range

Material	Operating Pressure up to	Maximum Pressure up to	Temperature	Surface Speed up to	Fluid, Media Compatability
Permachem 6643	3,800psi (260bar)	5,000psi (350bar)	-40°F to 400°F (-40°C to 210°C)	13ft/s (4m/s)	mineral oil-based fluids, fire-resistant water-based hydraulic fluids including HFA and HFB, biodegradable fluids, vegetable oils, bio-diesels, and most modern hydraulic fluids
Permachem 6150	5,000psi (350bar)	6,000psi (420bar)	-40°F to 400°F (-40°C to 210°C)	13ft/s (4m/s)	same as Permachem 6643
Additional standard materials available: PTFE, filled PTFE®, engineered thermoplastics, high-performance polyurethanes, NBR (Nitrile), FKM, Viton®, HNBR, EPDM, Aflas®, Hytrel®, Silicone, low- and high-temperature, FDA-compliant seal material grades and proprietary specialized Duralast™, Duraloy™, and Permachem™ materials.
Important Note: Maximum values above depend on extrusion gap, clearances, seal material, media, temperatures, pressures, surface speed, dynamic running surface finish and working environment. Seals cannot be operated at their upper ratings at the same time. Pressure ratings can be increased by reducing clearances. For pressure above specified operating pressure, surface speed above 5ft/s (1.3m/s), or for any advice, please contact engineering@ahpseals.com

Compare

S68A

S93

S93P

S98

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